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Home >> Buick >> 2007 >> Allure CXS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 3.6L - DTC P0135 To P0420 >> DTC P0324 >> Circuit Description >> Test Two

Test Two

The ECM internally turns OFF the KS signal circuits. The ECM then tests for any output response when no test signals are applied. If the ECM detects an output response, this DTC sets.